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KMID : 1024519980070030393
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Journal of the Environmental Sciences
1998 Volume.7 No. 3 p.393 ~ p.400
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Degradation of BTX by Klebsiella gr. 47 in the Biological Wastewater Treatment
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Yeom Sung-Ho
Choi Suk-Soon
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Abstract
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A microorganism, Klebsiella gr. 47, capable of degrading BTX(benzene, toluene and xylene) was isolated from oil-contaminated soil and its characteristics of BTX degradation were investigated. When benzene and toluene were fed to Klebstella gr. 47 simulataneously, they showed competitive ingibition. The degradation rate of xylene was enhanced as much as 3 times when xylene was fed with benzene or toluene. Degradation rate of benzene and toluene was also enhanced by cocultured with Alcaligenes xylosoxidans. When benzene-adapted microorganism was used, each BTX compound was degraded efficiently within 5 hours.
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KEYWORD
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Klebsiella, BTX, degradation, competitive inhibition, adaptation
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